Seal



FIG. 1 represents a perspective view of an embodiment of a seal showing our new design;

FIG. 2 represents a right side view of the design shown in FIG. 1;

FIG. 3 represents a top view of the design shown in FIG. 1;

FIG. 4 represents a cross-sectional view of the design shown in FIG. 3 along the line 4, illustrating the interior contour of the design;

FIG. 5 represents a left side view of the design shown in FIG. 1;

FIG. 6 is a perspective view of another embodiment thereof the only difference being a poppet inserted therein;

FIG. 7 represents a right side view of the designs shown in FIG. 6;

FIG. 8 represents a top view of the designs shown in FIG. 6;

FIG. 9 represents a cross-sectional view of the designs shown in FIG. 8 along the line 9, illustrating the interior contour of the designs; and,

FIG. 10 represents a left side view of the designs shown in FIG. 6. 

The ornamental design for a seal, as shown and described. 